Anyone using b12oils? I can't tolerate lozenges at all (hypersensitive mouth from MCS). I'm finding it really difficult to dose consistently with them as when I get a new bottle the oil is stronger with the strength gradually decreasing as I work through the bottle. I've noticed that the oil is much more red at the beginning, quite quickly becomes more translucent. Has anyone else had troubles with b12oils? I've tried mb12 injections but they're much too difficult to titrate and also too expensive.